All at once, I noticed that my wife __________ to be filled with alarm.

In my opinion, no search engine can ____ Baidu in search scope and speed (搜索速度和范围）.

If better use is _______ of your spare time, you’ll make great progress in your study.

Had she          her promise, she would have made it to Yale University.

I was so excited at the news that I could hardly ______ my feelings in words.